期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 502, 期 2, 页码 477-479出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.04.201
关键词
Cation distribution; Magnetic materials; X-ray techniques
CoAlxCrxFe2-2xO4 spinel ferrite systems (where x = 0.1 to 0.5 in steps of x = 0.1) were synthesized by wet chemical co-precipitation technique, aiming to study the relationship between cation distribution and concentration of the simultaneous substitution of Al3+ and Cr3+ ions. The Al3+ and Cr3+ site occupancies show nearly linear composition dependence. The obtained results show, that both Al3+ and Cr3+ ions predominately occupy the octahedral B-site. This is consistent with their preference for large octahedral site energy. The concentration of Al3+ and Cr3+ ions in octahedral sites increases while that of Fe3+ ions decreases linearly. (C) 2010 Elsevier B.V. All rights reserved.
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